Process for producing high quality pitch

Details Process for producing high quality pitch Process for producing high quality pitch

1978-12-12

1980-12-23

Levine, Herbert

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

By chemical conversion of oil

208 44, C10G 900, C10G 914

Patent

active

042408989

ABSTRACT:
A process is disclosed for producing pitches of high quality in a high yield by subjecting selected crude oil to adiabatic thermal and steam cracking process at a temperature between 700.degree. C. and 1000.degree. C. to produce gases containing ethylene, propylene and the like and a tar pitch having an ethylene-to-acetylene ratio above 5; adjusting the pitch content of the tar pitch in the range between 20 and 80 wt % (if this content is outside this specified range); heat-treating at a temperature between about 450.degree. C. and about 550.degree. C. under a pressure between about 50 and about 150 kg/cm.sup.2 (G) for about 1 to 15 minutes, and subsequently heat-soaking at a temperature between about 350.degree. and about 450.degree. C. under a pressure between about 0.5 and about 10 kg/cm.sup.2 (G) for about 15 minutes to 10 hours.

REFERENCES:
patent: 2847359 (1958-08-01), Beuther et al.
patent: 3673077 (1972-06-01), Roza
patent: 3794579 (1974-02-01), Enomoto et al.
Hosoi et al., "Chemical Engineering Progress", vol. 71, No. 11, Nov. 1975, pp. 63 to 67.

Affiliated with

Also associated with

Rating

Process for producing high quality pitch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing high quality pitch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing high quality pitch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2241282